OTTAWA – Liberal leader Justin Trudeau and his wife Sophie Gregoire are expecting their third child, the politician announced Tuesday over Twitter.

“Thrilled to let you know we’re going to need another seat in our canoe: Sophie is pregnant!” Trudeau tweeted, along with a photo of his family smiling from a bright red canoe.

The baby is due in March, Trudeau’s office said.

Forty-one-year-old Trudeau, who took over the reins of the Liberal party this spring, was married in 2005 to former model and Quebec television host Gregoire. The couple has two children, aged five and four. Son Xavier James was born Oct. 18, 2007 while daughter Ella Grace arrived on Feb. 5, 2009.

In a recent interview with the Globe and Mail, Gregoire said she thought her husband could both be a good father and “complete his responsibility as a human being.” She added that her two children “were born to” the hectic life that comes with their father’s political career.

“It’s normal for them when they see a huge group of people and everyone’s rushing up – they’re not stressed,” she said.

The newest addition to the Trudeau family will grow up a stone’s throw from 24 Sussex Drive where Trudeau lived as a child. The Trudeaus sold their Montreal home in June and moved to the wealthy Ottawa neighbourhood of Rockcliffe where they are renting a six-bedroom house from a banker.